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/// @file
/// IPF specific SwitchStack() function
///
/// Copyright (c) 2006, Intel Corporation
/// All rights reserved. This program and the accompanying materials
/// are licensed and made available under the terms and conditions of the BSD License
/// which accompanies this distribution. The full text of the license may be found at
/// http://opensource.org/licenses/bsd-license.php
///
/// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
/// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
///
/// Module Name: SwitchStack.s
///
///
.auto
.text
.proc AsmSwitchStackAndBackingStore
.type AsmSwitchStackAndBackingStore, @function
.regstk 5, 0, 0, 0
AsmSwitchStackAndBackingStore::
mov r14 = ar.rsc
movl r2 = ~((((1 << 14) - 1) << 16) | 3)
mov r17 = in1
mov r18 = in2
and r2 = r14, r2
mov ar.rsc = r2
mov sp = in3
mov r19 = in4
ld8.nt1 r16 = [in0], 8
ld8.nta gp = [in0]
mov r3 = -1
loadrs
mov ar.bspstore = r19
mov b7 = r16
alloc r2 = ar.pfs, 0, 0, 2, 0
mov out0 = r17
mov out1 = r18
mov ar.rnat = r3
mov ar.rsc = r14
br.call.sptk.many b0 = b7
.endp AsmSwitchStackAndBackingStore
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